Start position looks a lot better. In the videos of the banded variation, look where you lower the bar to. If you could get there when the bar is on the floor with that much tension that would be awesome. Try to duplicate it on the first rep.
For the technique stuff the hips/knees look better but it seems like you are looking too far down/not straightening your back all the way before you pull. Try to straighten out that little lower back round before you pull while keeping the lower body where it is.
You did this with the barely touching the floor deadlifts so I know your body can do it, you just need to duplicate it.